Although the true Rembrandt Tulips arent grown any longer, weve put together a blend of modern day hybrids to produce our Forged masterpieces Triumph Tulips are the result of crossing between long stemmed Darwin Tulips and varieties of the short stemmed Early Tulips. When planted outdoors, their flowering time is in-between these varieties, blooming late April/early May. With their strong stems, large flowers, and medium heights, Triumph Tulips are excellent as pot plants for Valentines Day and ...